Intelligent Nanomaterials for Wearable and Stretchable Strain Sensor Applications: The Science behind Diverse Mechanisms, Fabrication Methods, and Real-Time Healthcare

Abstract

It has become a scientific obligation to unveil the underlying mechanisms and the fabrication methods behind wearable/stretchable strain sensors based on intelligent nanomaterials in order to explore their possible potential in the field of biomedical and healthcare applications. This report is based on an extensive literature survey of fabrication of stretchable strain sensors (SSS) based on nanomaterials in the fields of healthcare, sports, and entertainment. Although the evolution of wearable strain sensors (WSS) is rapidly progressing, it is still at a prototype phase and various challenges need to be addressed in the future in special regard to their fabrication protocols. The biocalamity of COVID-19 has brought a drastic change in humans’ lifestyles and has negatively affected nations in all capacities. Social distancing has become a mandatory rule to practice in common places where humans interact with each other as a basic need. As social distancing cannot be ruled out as a measure to stop the spread of COVID-19 virus, wearable sensors could play a significant role in technologically impacting people’s consciousness. This review article meticulously describes the role of wearable and strain sensors in achieving such objectives.

Strain-Sensor-In-Pixel Technology for Resolution-Sustainable Stretchable Displays

“…As technology progresses beyond the Internet of Things (IoT) toward the Internet of Everything (IoE), there has been a significant increase in research efforts to integrate electronics into living organisms, including the human body. , In this context, stretchable electronics, currently the most advanced type of free-form electronics, are gaining attention as a promising approach. , In particular, stretchable electronics offer a potential solution to bridge the gap between traditional rigid electronics and the soft curvilinear nature of biological systems, including applications in soft robotics, bioelectronic medicine, brain-computer interface (BCI), and neuroprosthetics. , This is owing to the countless advanced electronic applications realizable by stretchable electronics, given that contoured surfaces constitute the majority of real-world environments.…”

Metal Oxide Electrospun Nanofibrous Membranes for Effective Dye Degradation and Sustainable Photocatalysis

“…Nanostructured metal oxides such as TiO 2 , SnO 2 , and ZnO have been widely used in various applications such as sensors, photocatalysis, photovoltaics, and other photoelectric devices [1][2][3][4][5][6][7][8][9][10]. TiO 2 and SnO 2 are wide band-gap semiconductors that are limited to a small fraction of absorption from the solar spectrum.…”

Dynamic Equivalent Resistance Model of Knitted Strain Sensor under In-Plane and Three-Dimensional Surfaces Elongation

“…The application of wearable strain sensors in detecting body motion posture, exercise rehabilitation, and healthcare makes our life much convenient [ 1 , 2 , 3 , 4 ]. Knitting fabrics, due to their multifunctional characteristics in terms of elasticity, flexibility, and deformability, are suitable to be employed in wearable garments as body monitoring sensors for movement [ 5 , 6 , 7 ].…”